74563141 has 2 divisors, whose sum is σ = 74563142. Its totient is φ = 74563140.

The previous prime is 74563129. The next prime is 74563213. The reversal of 74563141 is 14136547.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50268100 + 24295041 = 7090^2 + 4929^2 .

It is an emirp because it is prime and its reverse (14136547) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74563141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74569141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37281570 + 37281571.

It is an arithmetic number, because the mean of its divisors is an integer number (37281571).

Almost surely, 2^74563141 is an apocalyptic number.

It is an amenable number.

74563141 is a deficient number, since it is larger than the sum of its proper divisors (1).

74563141 is an equidigital number, since it uses as much as digits as its factorization.

74563141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10080, while the sum is 31.

The square root of 74563141 is about 8634.9951360727. The cubic root of 74563141 is about 420.8959351457.

Adding to 74563141 its reverse (14136547), we get a palindrome (88699688).

The spelling of 74563141 in words is "seventy-four million, five hundred sixty-three thousand, one hundred forty-one".